baber/WOPTO huggingface dataset:
Patent GB-125598-A (GB)
Title: Improvements in Shell Fuses.
Inventor: LUCAS OWEN DAVID
IPC: F42C15/20
Filed: 1916-09-01
Abstract: 125,598. Lucas, O. D. Sept. 1, 1916. Projectile fuses.-Relates to fuses of the kind having a piston acted upon by air pressure during flight. According to the invention, the striker is provided with a head in front of the fuse and with a piston of approximately equal area to that of the head working in a cylinder. In the construction shown, the striker comprises a hollow stem E having integral therewith a head F which is formed like a spoked wheel. A piston C working in a cylinder B is screwed on to the stem. The stem has aper. tures S just beneath the head, and there is also a hole 0 through the striker. A split collar G, surrounded by a centrifugally-acting tape normally held in place by an inertia pin L, serves as a safety device. During flight, air passes through the stem E to the rear of the piston, and a slight vacuum is formed in front of the piston owing to suction through a passage Q. A small hole R through the piston provides a constant leak. The striker is thus kept away from the detonator, without the use of a spring, until impact occurs.
Patent GB-455560-A (GB)
Title: Improvements in or relating to electric cut outs, connectors and the like
IPC: H01H85/20
Filed: 1935-04-25
Abstract: 455,560. Electric switch contacts. DONOVAN, G. O., DONOVAN, W., and DONOVAN, E. T. G., Safuse Works, Northcote Road, Stechford, Birmingham. April 25, 1935, No. 12417. Addition to 335,158, [Class 38 (v)]. [Class 38 (v)] The clip-and-blade contacts described ir the parent Specification are modified by causing the lower member or the screwed stem tc bear against an inclined face of a guided member which is thereby forced laterally on rotation of the screwed stem so that the blades of the plug member are forced against the fixed contact jaws. As shown a cylindrical nut e on the stem d bears at one side on the inclined face g<1> of a member g which has a forked portion embracing the screwed stem and an upper face bearing on the relatively fixed block c through which the stem passes. Thus when the locking handle f is screwed up after the plug member has been inserted the block g is forced sideways so bearing on the inner side of a movable blade g<3> supported on a cross-pin c<3> and acted upon by a spring c<4> at its upper end. This spring is overpowered, however as the stem is tightened up and the blade g<3> forced laterally to cause the plug member to grip the sides of the socket. The nut member carried by the screwed stem may, alternatively, Fig. 3 (not shown), be formed with an inclined face corresponding to and in contact with the face g<1> of the member g. The blade g<3> may in this form be made from material which is inherently resilient, the spring c<4> being omitted. The contacts described may be employed in conjunction with the arrangements for securing fuses, cable sockets, &c., which are set forth in Specification 455,559.
Patent GB-124693-A (GB)
IPC: G06C7/10
Abstract: 124,693. Wade, H., (Burroughs Adding Machine Co.). Jan. 2, 1918. Adding-apparatus with operating-means; selecting denominations; error keys.-Relates to single bank key-set independently-operated adding machines as described in Specification 124,538, in which machine the amount keys serve to set a field of stop pins in uniform series, one series for each denomination, mounted in a movable carriage traversed step by step relatively to the differential rack bars as the successive digits of an item are set up by depression of the amount keys, and after an item has been so set up, the carriage has to be restored to normal position with all its stop pins withdrawn. According to the present invention, the carriage is restored by a spring which is tensioned by the initial stroke of the main operating handle of the machine, but is held by a detent and does not operate until the detent is tripped near the conclusion of the return stroke of the main operating handle; the carriage can also be restored by an arm operated by an error key. The back plate 17<a>, Figs. 1 and 2, of the carriage has projecting from it a stud 17g with which is adapted to engage a pawl 60, Fig. 5. This pawl, which is forked and acted upon by a spring 60<b>, as shown, is pivoted to the top of the pivoted arm 61. In the position shown in Fig. 2, the pawl 60 is lowered from the stud 17g by means of the fork 60<a> engaging a stud 2a on the framework. Pivoted on the same axis as the lever 61 is a bell-crank lever 63, one arm of which engages a stud 61<a> on the lever 61. A spring 64 connects this stud to the framework. Upon operation of the main handle of the machine, the bell-crank 63 is moved to the right (Fig. 2) and moves the arm 61 tensioning the spring 64. The pawl 60 passes under the stud 17g and springs up behind to engage it on the return stroke. The arm 61 does not return with the bell-crank as the carriage is held by a detent 72 which is tripped near the completion of the return movement of the main handle. The detent mechanism is as follows. A spring 73, Fig. 1, tends to rotate a rock-shaft 71 carrying a pawl 72 adapted to engage a rack 70 standing off from the carriage. A full-stroke sector 69 connected to the main operating handle upon movement in the forward direction, moves, by means of a link 67 a bell-crank 66 connected by a twisted link 65 to the bell-crank 63, and a stud 66<a> on the bell-crank 66 moves away from a bell-crank 77 which engages a stud 74 on an arm attached to the rock-shaft, and allows the spring 73 to cause engagement of the detent 72 with its rack. When the return movement of the main handle is almost completed, the stud 66a engages the lever 77 and releases the detent, the spring 64 snapping the carriage home against the influence of a spring 40. An arm 90 carried by a shaft 91 is adapted to engage the stud 17g and move the carriage back to normal when the error key is operated. In returning the carriage, the projected stops engage a fixed cam plate and are withdrawn.
Patent GB-342218-A (GB)
IPC: G05D13/10
Filed: 1930-04-22
Abstract: 342,218. Lubricating. FORD MOTOR CO., Ltd., 88, Regent Street, London. April 22, 1930, Neo. 12474. Convention date, April 18, 1929. [Class 12 (ii).] Passages in governors.-A shield 32 surrounding the governor weights 35 to limit their travel is provided with scoops 61 to lubricate the working parts.
Patent GB-774043-A (GB)
Title: Sonic transducer with mechanical motion transformer
IPC: G03G15/20
Filed: 1955-04-29
Abstract: 774,043. Cleaning metals. BENDIX AVIATION CORPORATION. April 29, 1955 [May 5, 1952], No. 12508/55. Class 82(2) [Also in Groups XXIII and XXXIX] A coupling member 12 for transmitting vibrations from a transducer either directly to a liquid or to a diaphragm in contact with a liquid, comprises a plurality of legs, tapering off gradually (e.g. exponentially) to a neck near the diaphragm and then expanding rapidly to produce a large area for contact with the diaphragm. By this means it is stated that the advantages of the increase in amplitude of the vibrations due to the exponential taper are retained, whilst a large area is still presented to the liquid. As shown Figs. 1, 2 the coupling member comprises two legs of rectangular cross-section. Each of these may however be split to produce four legs of square cross-section. The arrangement may be such that the overall length R-U is equal to a half-wave length or whole wave length, and the ratio of the lengths of transducer and coupling member varied to ensure that the point where they are joined is a point of small stress, if a strong bond between the two elements is not possible, e.g. where the transducer is of the piezo-electric or ceramic type. The embodiment of Figs. 1, 2 uses a magneto strictive driving element having a D.C. polarizing winding 15 and an A.C. energizing winding 14. In an array of such transducers Fig. 7 having the ends of their coupling members immersed in a liquid on a travelling plate of glass metal or plastic which is required to be cleaned. In this case to avoid the induction of A.C. into the polarized windings, for half of the transducers the direction of winding of the A.C. coils, relative to the D.C. coils is opposite to the relative direction for the other half of the transducers.
Patent GB-167011-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/16
Filed: 1920-05-06
Abstract: 167,011. Bailing, M. J., and Manchester, W. May 6, 1920. Switches, quick-action.-In a tumbler switch, the operating-lever D is pivoted in the bridgepiece C and is formed with two depending arms J, each having a slot M formed therein. The movable contact Q is secured to, but insulated from a U-shaped rocking member R, pivoted in the switch frame B and having triangular slots S formed in each limb. A link K has secured to its upper end a transverse pin L passing through both pairs of slots M, S, its lower end carrying a vertically guided pin N which rests on a member O urged upwards by the spring P. A snap action is effected by the action of the spring-urged pushpiece O on the toggles formed by the link K and the tumbler lever D. As the top pin L of the link K works both in the slots M of the tumbler lever and the slots S of the carrier R, the switch may be positively actuated, independently of the spring P.
Patent GB-622223-A (GB)
Title: Improvements in or relating to dyes and particularly photographic sensitising dyes
IPC: C09B23/14
Filed: 1946-04-26
Abstract: Hexamethylene - bis - (2 - methylbenzthiazole bromide) is prepared by refluxing together hexamethylene dibromide and 2-methylbenzthiazole. Hexamethylene - bis - (2 : 6 - lutidine bromide) and trimethylene - bis - (2 : 4 - lutidine bromide) are similarly prepared. Specifications 334,706, [Class 2 (iii)], 573,394, and 607,920 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specifications 622,272 and 622,273, [both in Group IV (c)].  This subject-matter does not appear in the Specification as accepted.ALSO:A styryl dye is prepared by condensing a p-tertiary-amino aromatic aldehyde containing at least two reactive aldehyde groups with a quaternary salt of a heterocyclic nitrogen compound containing at least one reactive methyl group in a - or g -position to a quaternary N atom.  The condensation may be effected in presence of an acid-binding substance.  N : N1-Diethylene - bis - (2 - p - aminostyrylbenzthiazole ethiodide is prepared by refluxing together N : N1-(p : p1 - diformyldiphenyl) - piperazine and 2 - methylbenzthiazole ethiodide in alcohol in presence of piperidine.  N : N1-Diethylene-bis-(2 - p - aminostyrylbenzselenazole ethiodide, methylene - bis - (p - methylaminostyrylbenzthiazole ethiodide), methylene - bis - (p - methylaminostyrylbenzselenazole ethiodide), methyl-di-(p-styrylbenzthiazole ethiodide) amine, N : N1-ethylene - bis - (p - ethylaminostyrylbenzthiazole ethiodide), tri - (p - 2 - benzalmethylbenzthiazole ethiodide) amine, tri - (p - 2 - benzalmethylbenzselenazole ethiodide) amine, and a polymeric dye from N : N1 - ethylene - bis - (p - ethylaminobenzaldehyde) and hexamethylene - bis - (2 - methylbenzthiazole) dibromide are similarly prepared.  Numerous other bases, polyfunctional hydrocarbon derivatives capable of forming bis salts with such bases, and aldehydes are specified. Specifications 334,706, [Class 2 (iii)], 573,394, and 607,920, [Group IV (b)], are referred to.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specifications 622,272 and 622,273. This subject-matter does not appear in the Specification as accepted.
Patent GB-1144463-A (GB)
Title: Flotation equipment
IPC: B03D1/24
Filed: 1966-03-22
Abstract: 1,144,463. Froth flotation; agitating, aerating and circulating liquids. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. 22 March, 1966 [28 Sept., 1965], No. 12665/66. Headings B1C and B2H. In a froth flotation apparatus, a homogeneous distribution of air and of a slurry of granular materials to be separated is achieved by pumping a mixture of the slurry and air into the flotation tanks via vortex forming chambers arranged in the tank in at least two separate groups, the whole of the slurry being fed to one group of the vortex forming chambers and the slurry being pumped out of the tank and re-circulated therein through anothre group of other groups of the vortex forming chambers. In Fig. 1, slurry is fed from a conditioning tank 1 by means of a pump 2 and distributing pipes 3 into a first group of vortex generators 5 arranged in the front part of the flotation tank 6. Each vortex generator, which may be made of cast basalt, rubber or synthetic material, consists of a double-walled vortex chamber 27, Fig. 4, with conduits 32 opening into the space between the inner and outer walls. A tangential inlet 23 to the vortex chamber has a built-in injector 24 in the inlet of which a conduit 26 opens. A conduit 25 opens on the axis of the chamber 27 below its discharge orifice 28. In operation, the slurry is fed through the inlet 23 and in passing through the injector 24 causes air to be sucked in through the conduit 26. The slurry and air leave the orifice 28 of the chamber 27 in a vortex at high speed creating a vacuum causing air to be sucked in through conduits 25, 32. Any of the conduits 25, 26, 32 may be connected to a conduit for the supply of flotation reagent to the tanks 6. Within the chamber 27, the air dissolved in the water becomes separated and forms fine air bubbles on the hydrophobic surfaces of the particles of the desired material thus increasing the speed of flotation of these particles in the tank 6. If insufficient slurry is being fed to the vortex generators 5 a further quantity may be provided from the front part of the tank 6 by means of a conduit 11 and adjustment of a valve 12. Slurry to be recirculated is withdrawn through an adjustable pipe 13 and regulating valve 14 by means of a pump 15 which delivers it through conduits 16, 17 to a second group of vortex generators 18. The poor quality concentrate collected in the froth in the part of the tank above the generators 18 is delivered on to a froth chute 9 from which the froth passes through a conduit 10, pump 2 and pipes 3 to the first group of vortex generators 5. The high grade final concentrate is collected in the froth in the part of the tank above the generators 5, the froth being discharged via a froth chute 8. Discharge of the froth may be effected by means of paddle wheels 7, Fig. 2. Tailings left in the tank are discharged via a conduit 19a and an overflow 19b. Two other arrangements of vortex separators in flotation tank are described.
Patent GB-1038903-A (GB)
Title: Improvements in or relating to printing machines
Inventor: CHANDLER MICHAEL ANTHONY
IPC: B41L45/02
Filed: 1964-03-25
Abstract: 1,038,903. Printing-apparatus. ADDRESSOGRAPH-MULTIGRAPH Ltd. March 25, 1965 [March 25, 1964], No. 12746/64. Heading B6C. Cylinder printing machines.-A travelling- cylinder printing machine comprises an elongated framework 3-5 supporting vertical endplates 1, 2, a carriage 20 carrying an impression roller and mounted on the bars 4, 5 of the framework so as to be movable from a first station adjacent the plate 1 to a second station, Fig. 2 (not shown) adjacent the plate 2 and vice versa, an embossed printing block 8 and a block 9, adapted to support a removable embossed plate 11, located between the two stations, means at the first station for lowering the roller into its operative position, and means at the second station for tripping the roller whereby it is returned under spring pressure to the first station in its raised position. The blocks 8, 9 are adjustable in position and each sheet to be printed is supported in a two-part tray 15A, 15B. The impression roller is mounted on a channel-shaped member pivoted on a shaft 29. At the first station a pin on the plate 1 swings said member clockwise until a bar thereon is engaged by a notch in a bell-crank lever, Fig. 5 (not shown); at the second station a pin 42 on the plate 2 engages one arm of the lever and releases the bar. The carriage is moved manually to the right against the force of a spring which is unwound from a bobbin carried by the carriage. The sheets to be printed may be of the type requiring no carbon paper. If carbon paper is used the uppermost sheet of the assembly may be transparent. Inking apparatus.-The impression roller above may be replaced by an ink impregnated roller which is used to print on standard copy sheets located on the adjustable support members. The inking roller is mounted on its shaft by a retaining latch engaging a circumferential groove in the shaft. The shaft is provided with a knurled head to enable the roller to be easily replaced by either a fresh inking roller or a nylon &c. impression roller.
Patent GB-514268-A (GB)
Title: Improvements in or relating to the production of aliphatic anhydrides
IPC: C07C51/235
Filed: 1938-04-28
Abstract: 514,268. Aliphatic anhydrides. KODAK, Ltd. April 28, 1938, No. 12786. Convention date, April 28, 1937. [Class 2 (iii)] Aliphatic anhydrides are produced in a continuous process in which an aldehyde and oxygen are introduced into a mixture of the corresponding acid and anhydride containing a catalyst, liquid is continuously withdrawn and distilled to remove most of the water and part of the acid and anhydride, and the distillation residue is returned to the reaction zone, the conditions being such that the reaction liquid contains less than 10 per cent. of water. The distillation may be a "flash" distillation at reduced pressure, the distillate being again distilled at reduced pressure to separate the anhydride. The reaction may be effected at 20-100‹C. and the catalyst may be an activated cobalt compound, or cobalt acetate in acetic acid ; activation may be effected by bubbling oxygen and aldehyde through the mixture. If iron apparatus is used, over-oxidation may be checked by adding a phosphate or other iron precipitant. In the apparatus shown in Fig. 1, aldehyde and air are introduced at 1 and 2 into the reaction column 3, the air being first passed through a refrigerator 14 and drying-tube'15. Reaction liquid overflows at 19 to a gas separator 4 connected to a return pipe 21 and a condenser 5. Withdrawn liquid goes to a flash pot 6, the distillate from which is further distilled in a column 8 and the residue in the flash pot is returned by a pipe 24 to the reaction column 3. The invention is described with reference to the production of acetic anhydride, but propionic and butyric anhydrides are also mentioned. Specification 446,259 is referred to.
Patent GB-1056731-A (GB)
Title: Process for continuously preparing dyed fibres
IPC: D01F6/18
Filed: 1965-03-25
Abstract: A process for continuously preparing dyed filaments of acrylonitrile polymer which comprises (a) wet-spinning an acrylonitrile polymer containing dye receptive groups in the polymer structure to form wet gel filaments, and carrying out the following steps while maintaining the wet gel filaments under tension but without any substantial stretching (b) washing and treating the resulting wet gel filaments, while under tension with a hot aqueous liquid at a temperature higher than the subsequent dyeing temperature, (c) removing substantially all the surface liquid from the wet gel filaments; (d) applying to the wet gel filaments a limited amount of dye solution containing a barely sufficient amount of dye to produce the desired shade; (e) maintaining the wet gel filaments to hold the dye solution thereon for at least 10 seconds at a temperature lower than that of the preceding washing and treating step (b) to permit substantially complete exhaustion of the dye from the dye solution and (f) heat-treating the dyed wet-gel filaments, the filaments being allowed to travel during processing steps (a) to (f) inclusive and not being impregnated with an excess of the dye solution.  Step (b) is preferably carried out at above 50 DEG C and step (f) is performed at a temperature below that of step (b).
Patent GB-260509-A (GB)
Title: Improvements in or relating to centrifugal machines for the manufacture of sugar
IPC: B04B7/10
Filed: 1926-05-19
Abstract: 260,509. Lehky, R. May 19, 1926. Strainer separators; treating substances with liquids.-The drum of a centrifugal machine used in the manufacture of pile sugar has a ring or plate K normally resting on the drum base and capable of being raised by a centrally arranged device to remove sugar from the drum. The operating device shown is a screw A which can be raised or lowered in the upper extremity of the shaft B by means of a key. When the screw is .lowered the rods F, lowered with it, depress the inner ends of the pivoted levers G the outer ends of which elevate pins I to raise the ring and free the sugar.
Patent GB-1099218-A (GB)
Title: Dichlorobenzobis(oxazoles) and their use as stabilisers for chlorinated olefin polymers
IPC: C08G73/22
Filed: 1965-04-13
Abstract: A composition comprises chlorinated polyethylene and, as heat stabilizer, a compound of the formula <FORM:1099218/C3/1> wherein R is alkyl, haloalkyl, aryl, aralkyl, or alkyl-aryl, or a compound consisting substantially entirely of groups of the formula <FORM:1099218/C3/2> wherein R1 is alkylene or arylene, in an amount of at least 0.5% by wt. of the chlorinated polyethylene.  The invention also comprises compounds of Formula II above.-These compounds are prepared by reacting 2,5-diamino-3,6-dichloro-hydroquinone dihydrochloride with a dicarboxylic acid of formula R1(COOH)2, or an anhydride, ester or aryl halide thereof.ALSO:The invention comprises compounds of the general formula <FORM:1099218/C2/1> wherein R is an alkyl, haloalkyl, aryl, aralkyl or alkylaryl radical.  The compounds are prepared by the process <FORM:1099218/C2/2>
Patent GB-457008-A (GB)
Title: Improvements in or relating to torque-measuring devices
IPC: G01L3/14
Filed: 1936-05-07
Abstract: 457,008. Dynamometers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. May 7, 1936, No. 12934. Convention date, May 11, 1935. [Class 106 (ii)] The torque of a shaft derived in part from a motor, in part from a retarded fly-wheel, is measured by means of another fly-wheel 5 combined with an auxiliary motor 6 and a speed-changing gearing having a casing 3 which is rotatable against the action of springs 7 and transmits its angular motion to a pointer 8 indicating the torque. The shaft, the torque of which is to be measured, is coupled to the slow-moving shaft 2 of the change-speed gearing, which has a coaxial outgoing shaft 4 carrying the fly-wheel 5. According to the invention, the torque of the auxiliary motor 6 acting on the fly-wheel 5 is related to the torque of the main motor in the same proportion as the product of the moment of inertia of tho fly-wheel 5 and the gearing ratio is related to the moment of inertia of the fly-wheel belonging to the main motor.
Patent GB-888577-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: KREUCHEN KARL HEINZ ROBERT CHR
IPC: H01J23/027
Filed: 1958-04-24
Abstract: 888,577. Velocity-modulated tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 23, 1959 [April 24, 1958], No. 12986/58. Class 39(1) In an electron discharge device such as a klystron or travelling wave tube, a tubular target or anode, forming part of the envelope of the device, is provided on its inner wall surface with a groove or grooves in which is disposed getter material. A plurality of circumferential grooves or a helical groove may be provided. The getter material may be in the form of a wire of zirconium, titanium, hafnium, tantalum, niobium or thorium, of circular cross-section and the grooves are preferably of arcuate shape having a radius of curvature equal to that of the wire. The grooves 2 may slope downwardly as shown and are of such a depth that the wire lies below the inner surface of the anode 1, so that it is partially shielded from the electron beam. Specification 648,962 is referred to.